The newly minted professional fighter dispatched his Thailand opponent, Fahmongkol Liangprasert, with a cracking body shot and waited for the count.
The 18-year-old had left his life in Dunedin behind to spend eight weeks at a training camp in Bunbury, Western Australia, preparing for his debut — and it was all over so quickly.
"I wanted the fight to go a bit longer," he said.
"My family all bought tickets and I didn’t give them much of a show. But you have to take the opportunity when it presents itself."
That was in April and Hanan climbed back into the ring in July and beat Pramool Boonpok by unanimous decision in a four-round bout.
The super welterweight fought 54 amateur bouts before turning professional. He won three New Zealand titles as a junior or a youth and picked up two silver medals at the Australian Golden Gloves over the years as well.
He started boxing as a 10-year-old and by 15 was a very determined young fighter with some big ambitions.
He was already training twice a day, six days a week, when preparing for a fight. Back then his goal was to represent New Zealand at the 2018 Commonwealth Games.
But the bar has shifted. Hanan decided to turn professional earlier this year after finding the right trainer while on holiday in Australia.
He had heard about coach Peter Stokes and Denning Boxing Gym in Bunbury and decided to visit.
"I knew I wanted to turn pro, I just had to find the right trainer for me. I went there and just clicked with [Stokes] straight away."
While Hanan still lives in Dunedin, he travels to Bunbury to prepare for his fights and boxes under an Australian banner.Hanan expects to fight again in February. He had a "few fights" fall through in the second half of the year.
"That is the business of boxing, but we are looking at February for a fight."
Nicknamed "sweet hands", Hanan’s footwork and hand speed are key weapons in the ring, but all his attacks are built off his jab.
He is also working on his power, which you need in the pro ranks. It helps that he is able to make weight as a super welterweight (69.8kg).
He normally walks around at 77kg-78kg, so it takes some hard work to cut the weight. But it is worth it when he gets in the ring "feeling powerful", he said.
Hanan’s next goal is to fight for "some sort of youth title" and then look at some bigger titles.
